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化学学报
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化学学报 ›› 1976, Vol. 34 ›› Issue (3): 171-178. 上一篇    下一篇

论文

三乙酰基丙酮镨晶体结构的测定

林永华, 莫志深, 邢彦   

  1. 中国科学院吉林应用化学研究所
  • 投稿日期:1976-04-04 发布日期:2013-06-03

DETERMINATION OF THE CRYSTAL STRUCTURE OF PRASEODYMIUM TRIACETYLACETONATE

LIN YUNG-HUA, Mo CHIH-SHENG, HSING YEN   

  1. Kirin Institute of Applied Chemistry, Academia Siniica
  • Received:1976-04-04 Published:2013-06-03

PDF

593

被引次数

6

用X-射线衍射方法测定了三乙酰基丙酮镨Pr(CH3COCHGOCH3)3·2H2O的晶体结构,初步研究结果表明晶体属三斜晶系,α=16.51±0.11Å,b=10.68±0.05Å,c=11.38±0.05Å,α=74.53±0.01°,β=85.61±0.01°,γ=99.93±0.02°,ρo=1.669克/厘米3,z=4,空间群是PI,用重原子法解释了P(0vw)和P(u0w)帕特逊投影并计算了相应方向的电子云密度投影,三乙酰基丙酮镨的结构系由围绕着镨离子的八个氧原子构成歪扭棱柱形多面配位体组成,其中有两个氧是属配位水的,Pr…O距离为2.60±,C—C键为1.51±,C=CH键为1.40±,C=O键为1.29±,∠O-Pr-O的键角为76°,乙酰基丙酮环上的原子接近于一个平面.

The space group belongs to PI. By using the heavy-atom mothod, the P (Ovw) and P (u0w) of Patterson projection is interpreted and electron density projection along the corresponding direction of the electron density calculated. The polyhedral crdination of the slightly distorted antiprism is formed by eight oxygen atoms sarronnding the Pr-ion,of which two belong to the coordinating water.